<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <link rel="stylesheet" href="bootstrap.min.css" />
  </head>
  <body>
    <div class="container">
      <div class="row">
        <div class="col-sm-12 col-lg-3">
          <button type="button" class="btn btn-primary">Primary</button>
          <button type="button" class="btn btn-secondary">Secondary</button>
        </div>
        <div class="col-6">
          <button type="button" class="btn btn-success">Success</button>
          <button type="button" class="btn btn-danger">Danger</button>
        </div>
        <div class="col3">
          <button type="button" class="btn btn-warning">Warning</button>
          <button type="button" class="btn btn-info">Info</button>
        </div>
      </div>
      <div class="row">
        <div class="col-6 offset-3">
          <button type="button" class="btn btn-light">Light</button>
          <button type="button" class="btn btn-dark">Dark</button>

          <button type="button" class="btn btn-link">Link</button>
        </div>
      </div>

      <hr />
      <p>
        <a
          class="btn btn-primary"
          data-toggle="collapse"
          href="#collapseExample"
          role="button"
          aria-expanded="false"
          aria-controls="collapseExample"
        >
          Link with href
        </a>
        <button
          class="btn btn-primary"
          type="button"
          data-toggle="collapse"
          data-target="#collapseExample"
          aria-expanded="false"
          aria-controls="collapseExample"
        >
          Button with data-target
        </button>
      </p>
      <div class="collapse" id="collapseExample">
        <div class="card card-body">
          Some placeholder content for the collapse component. This panel is
          hidden by default but revealed when the user activates the relevant
          trigger.
        </div>
      </div>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.slim.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/js/bootstrap.bundle.min.js"></script>
  </body>
</html>
